WO2006020636A2 - Systeme et procede de basculement entre des stations de base - Google Patents

Systeme et procede de basculement entre des stations de base Download PDF

Info

Publication number
WO2006020636A2
WO2006020636A2 PCT/US2005/028263 US2005028263W WO2006020636A2 WO 2006020636 A2 WO2006020636 A2 WO 2006020636A2 US 2005028263 W US2005028263 W US 2005028263W WO 2006020636 A2 WO2006020636 A2 WO 2006020636A2
Authority
WO
WIPO (PCT)
Prior art keywords
base station
handoff
target base
mobile station
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2005/028263
Other languages
English (en)
Other versions
WO2006020636A3 (fr
Inventor
Masoud Olfat
Kamran Etemad
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nextel Communications Inc
Original Assignee
Nextel Communications Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nextel Communications Inc filed Critical Nextel Communications Inc
Publication of WO2006020636A2 publication Critical patent/WO2006020636A2/fr
Publication of WO2006020636A3 publication Critical patent/WO2006020636A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H04W36/185—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection using make before break
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/249—Reselection being triggered by specific parameters according to timing information

Definitions

  • serving base station typically referred to as a serving base station
  • Mobile stations can include cellular telephones,
  • PDAs personal digital assistants
  • computers equipped with wireless transceivers such as integrated transceivers or transceivers on PCMCIA cards
  • Hard handoff is performed in a break-before-make manner, in which a
  • handoff areas might be the preferred mode for high-speed packet data channels. It also simplifies the handling of data packets at the network infrastructure. However, hard handoff does not provide full diversity gain
  • QoS Quality of Service
  • ARQ retransmission request
  • broadband communication technologies including
  • cdma2000, IxEV-DO, WCDMA, Flarion's Flash OFDM ® and IEEE80216e provide both hard and soft handoff.
  • soft handoff is typically employed for communications that are sensitive to interruptions or errors, while
  • Exemplary embodiments of the present invention provide a hybrid
  • control channel communications are handed off from a serving base station to a target base station, while the mobile station continues
  • serving base station informs the mobile station of time periods, corresponding to
  • serving base station then adjusts its scheduler in such a way that the serving
  • base station transmits unicast and multicast messages to the mobile station
  • fast cell switch feedback channel is allocated to the mobile station when there is
  • the mobile station uses the fast cell switch
  • the mobile station then can handoff the traffic channel
  • Figure 1 is a signaling diagram illustrating an exemplary method
  • Figure 2 is a signaling diagram illustrating an exemplary method
  • Figure 1 is a signaling diagram illustrating an exemplary method
  • the mobile station receives a neighbor
  • NBE-ADV serving base station
  • the mobile station can also receive the downlink MAP (DL_MAP) and
  • uplink MAP (UP_MAP) during Frame 1.
  • the mobile station measures the
  • MSSHO-EEQ handoff request
  • the MSSHO-EEQ message identifies the measured base stations and their
  • Base stations with CINR's above a predetermined threshold are considered as “candidate" base stations for handoff. Based on the received measurements, and other logical considerations, the serving base station, or the
  • handoff controller entity in the network selects one of the bases stations among
  • the top candidate neighbor base stations as the target base station for handoff.
  • the serving base station which also serves as an "anchor" base station during
  • the cell switching process notifies the target base station (BS2) that the mobile
  • target base station using, for example, HO Notification and Context Transfer
  • the target base station reserves a ranging channel and basic
  • connection identifier (CID) for the mobile station, and forwards this information
  • the serving base station during the time period of
  • Frame 3 transmits a message to the mobile station instructing it to attempt a handoff to the target base station.
  • the message includes the target base
  • reserved ranging channel can be a physical channel or a logical channel defined
  • This message can be a HO Preparation Order Message, or can be an
  • BSHO-RSP handoff response
  • T-Frames The
  • serving base station's scheduler is adjusted to prevent scheduling any unicast or
  • the mobile station tunes to the control channel of the target base
  • FCH FCH
  • DL_MAP DL_MAP
  • UL_MAP UL_MAP
  • the mobile station transmits the initial ranging message on the reserved ranging channel to the target base station.
  • the mobile station receives the initial ranging message on the reserved ranging channel from the target base station.
  • UCD descriptor
  • the serving base station as part of the HO-Preparation message,
  • the mobile station is different from that of the serving base station. Otherwise, the mobile station
  • the mobile station then tunes again to the serving base station
  • the mobile station again tunes to the control channel of the target base station to receive the response to the ranging
  • RNG-RSP RNG-RSP
  • CID CID allocation
  • These messages may be related to security, system parameter
  • the serving base station HO-Completion Indication.
  • the serving base station HO-Completion Indication.
  • the target base station transmits a
  • the serving base station can terminate
  • the handoff process by notifying the target base station of the early termination.
  • the serving base station will remain as the serving base station
  • Figure 2 is a signaling diagram illustrating an exemplary method
  • a fast cell switch in accordance with another embodiment of the present invention.
  • a fast cell switch in accordance with this embodiment of the present invention, a fast cell switch
  • the mobile station receives NBR-ADV
  • predetermined threshold are considered as "candidate" base stations for
  • the base station specifies a subset of the candidate neighbors as recommended
  • the serving base station namely the Active Set.
  • FCS Fibre Channel Switch
  • the Active Set and the FCS channel allocation can be specified through
  • the serving base station also allocates a short, e.g. 3
  • the FCS may also be defined as a subchannel or field within uplink dedicated control channel. 2] The FCS channel is used by the mobile station to frequently
  • the mobile station may specify the
  • the system also defines a configurable timer for the FCS to allow the
  • the serving base station Before handoff to the target base station is competed, the serving base station
  • the serving base station does not
  • New neighbor base stations will be added to Active Set if their
  • FCS will be automatically released by the mobile station once the serving base
  • the serving base station transmits a
  • serving base station may also send a message (not illustrated) to the target base
  • the target base station allocates a basic
  • the serving base station transmits
  • the mobile station monitors the
  • target base station such as DL/UL_MAP, downlink channel descriptor (DCD), uplink channel descriptor (UCD), or any other
  • the mobile station can start
  • the mobile station transmits a message to the target
  • the ranging response along with a CID allocation, it can indicate its handoff
  • the mobile station then receives a traffic channel (TCH)
  • the mobile station can indicate its selected base station
  • TEMP_BS_ID One of TEMP_BS_ID's, e.g. 000,
  • the traffic communication is still performed between the mobile station
  • the mobile station indicates the handoff completion through
  • TMs is the moment when the traffic communication is switched from the
  • the present invention can be used to determine whether a handoff between two different base stations.
  • control/signaling channels to preserve the link integrity throughout the handoff
  • handoff can be performed by both traffic and signaling channels.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Cette invention concerne un système et un procédé de basculement. Selon cette invention, une station mobile effectue un basculement avec chevauchement d'un canal de commande entre une station de base de desserte et une station de base cible et un basculement sans chevauchement d'un canal de trafic entre la station de base de desserte et la station de base cible. Le transfert de canal de trafic est effectué à l'issue du transfert de canal de commande.
PCT/US2005/028263 2004-08-10 2005-08-09 Systeme et procede de basculement entre des stations de base Ceased WO2006020636A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59991604P 2004-08-10 2004-08-10
US60/599,916 2004-08-10

Publications (2)

Publication Number Publication Date
WO2006020636A2 true WO2006020636A2 (fr) 2006-02-23
WO2006020636A3 WO2006020636A3 (fr) 2006-04-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/028263 Ceased WO2006020636A2 (fr) 2004-08-10 2005-08-09 Systeme et procede de basculement entre des stations de base

Country Status (2)

Country Link
US (2) US7693517B2 (fr)
WO (1) WO2006020636A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009020347A1 (fr) * 2007-08-06 2009-02-12 Samsung Electronics Co., Ltd. Appareil et procédé pour émettre et recevoir l'information d'identifiant de connexion dans un système de communication
KR101397095B1 (ko) 2007-06-04 2014-05-27 고려대학교 산학협력단 무선 통신 시스템에서 핸드오버 장치 및 방법

Families Citing this family (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2393373A1 (fr) 2002-07-15 2004-01-15 Anthony Gerkis Appareil, systeme et methode de transmission de donnees offrant differents attributs de qualite de service
US9544860B2 (en) * 2003-02-24 2017-01-10 Qualcomm Incorporated Pilot signals for use in multi-sector cells
US8514692B2 (en) * 2003-02-24 2013-08-20 Qualcomm Incorporated Methods and apparatus for determining, communicating and using information which can be used for interference control purposes
US9661519B2 (en) * 2003-02-24 2017-05-23 Qualcomm Incorporated Efficient reporting of information in a wireless communication system
US7218948B2 (en) * 2003-02-24 2007-05-15 Qualcomm Incorporated Method of transmitting pilot tones in a multi-sector cell, including null pilot tones, for generating channel quality indicators
US8811348B2 (en) * 2003-02-24 2014-08-19 Qualcomm Incorporated Methods and apparatus for generating, communicating, and/or using information relating to self-noise
KR100665425B1 (ko) * 2003-03-08 2007-01-04 삼성전자주식회사 이동 통신 시스템에서 핸드오버를 수행하는 시스템 및 방법
BRPI0512598B1 (pt) * 2004-06-23 2019-03-06 Samsung Electronics Co., Ltd. Método para transmitir/receber informação de atualização de identificador em um sistema de comunicação de acesso sem fio de banda larga
KR100876771B1 (ko) * 2004-08-17 2009-01-07 삼성전자주식회사 무선 통신 시스템에서 제어 정보 압축 방법과 스캐닝 정보 송수신 방법 및 장치
US8503938B2 (en) * 2004-10-14 2013-08-06 Qualcomm Incorporated Methods and apparatus for determining, communicating and using information including loading factors which can be used for interference control purposes
WO2006044672A2 (fr) * 2004-10-15 2006-04-27 Meshnetworks, Inc. Systeme et procede destines a faciliter le transfert inter-frequence de terminaux mobiles dans un reseau de communication sans fil
US8036665B2 (en) * 2004-10-28 2011-10-11 At&T Mobility Ii Llc Wireless mobile station call handoff
KR100663451B1 (ko) * 2004-11-09 2007-01-02 삼성전자주식회사 이동 인터넷 프로토콜 통신 시스템에서 소스 노드의핸드오프에 따른 멀티캐스트 서비스 제공 방법
US7751363B1 (en) * 2004-11-22 2010-07-06 Nextel Communications Inc. System and method for allocating traffic and associated control channels
US7706789B2 (en) * 2005-03-31 2010-04-27 Intel Corporation Techniques to manage roaming
US8331941B2 (en) * 2005-05-10 2012-12-11 Alcatel Lucent Method of providing messages to a mobile unit on a forward link
TWI303128B (en) * 2005-05-11 2008-11-11 Univ Nat Chiao Tung A method of symbol detection for mimo dual-signaling uplink cdma systems
US8175600B2 (en) * 2005-08-13 2012-05-08 Motorola Mobility, Inc. Method and apparatus for decreasing latencies during handover
US8243653B2 (en) * 2005-08-23 2012-08-14 Nec Corporation Synchronization system and synchronizing method for plurality of base stations and mobile station in a forward link wireless transmission
US8787823B2 (en) 2005-09-19 2014-07-22 Lojack Corporation Recovery system with repeating communication capabilities
KR100734838B1 (ko) * 2005-10-10 2007-07-03 한국전자통신연구원 핸드오버시 패킷 유실을 방지하는 패킷 포워딩 방법, 경로재설정 방법 및 상태 전이 방법
US9191840B2 (en) * 2005-10-14 2015-11-17 Qualcomm Incorporated Methods and apparatus for determining, communicating and using information which can be used for interference control
US8694042B2 (en) * 2005-10-14 2014-04-08 Qualcomm Incorporated Method and apparatus for determining a base station's transmission power budget
RU2411660C2 (ru) 2005-10-31 2011-02-10 Эл Джи Электроникс Инк. Способ передачи и приема информации о радиодоступе в системе беспроводной подвижной связи
KR101222739B1 (ko) * 2005-11-05 2013-01-15 인하대학교 산학협력단 지능형 무선 인지 기술을 이용하는 무선 통신 시스템을위한 매체 접근 제어 계층에서의 통신 초기화 방법
WO2007061272A2 (fr) 2005-11-28 2007-05-31 Lg Electronics Inc. Procede et appareil destines a generer et a transmettre une sequence de code dans un systeme de communication sans fil
US9137072B2 (en) 2005-12-22 2015-09-15 Qualcomm Incorporated Methods and apparatus for communicating control information
US9338767B2 (en) 2005-12-22 2016-05-10 Qualcomm Incorporated Methods and apparatus of implementing and/or using a dedicated control channel
US9572179B2 (en) 2005-12-22 2017-02-14 Qualcomm Incorporated Methods and apparatus for communicating transmission backlog information
US20070149132A1 (en) 2005-12-22 2007-06-28 Junyl Li Methods and apparatus related to selecting control channel reporting formats
US9125092B2 (en) * 2005-12-22 2015-09-01 Qualcomm Incorporated Methods and apparatus for reporting and/or using control information
US9473265B2 (en) * 2005-12-22 2016-10-18 Qualcomm Incorporated Methods and apparatus for communicating information utilizing a plurality of dictionaries
US9148795B2 (en) * 2005-12-22 2015-09-29 Qualcomm Incorporated Methods and apparatus for flexible reporting of control information
US9125093B2 (en) * 2005-12-22 2015-09-01 Qualcomm Incorporated Methods and apparatus related to custom control channel reporting formats
US9119220B2 (en) * 2005-12-22 2015-08-25 Qualcomm Incorporated Methods and apparatus for communicating backlog related information
US9451491B2 (en) * 2005-12-22 2016-09-20 Qualcomm Incorporated Methods and apparatus relating to generating and transmitting initial and additional control information report sets in a wireless system
US20070249287A1 (en) * 2005-12-22 2007-10-25 Arnab Das Methods and apparatus for selecting between a plurality of dictionaries
US8437251B2 (en) 2005-12-22 2013-05-07 Qualcomm Incorporated Methods and apparatus for communicating transmission backlog information
US8514771B2 (en) * 2005-12-22 2013-08-20 Qualcomm Incorporated Methods and apparatus for communicating and/or using transmission power information
KR100791288B1 (ko) * 2005-12-27 2008-01-04 삼성전자주식회사 핸드오버 제공 장치 및 방법
US20070153719A1 (en) * 2005-12-29 2007-07-05 Telefonaktiebolaget Lm Ericsson (Publ) Scheduling of broadcast message transmission to increase paging capacity
US20070161374A1 (en) * 2006-01-11 2007-07-12 Airnet Communications Corporation Co-channel handover in a cellular network
US20070243882A1 (en) * 2006-04-12 2007-10-18 Qualcomm Incorporated Method and apparatus for locating a wireless local area network associated with a wireless wide area network
US20070258406A1 (en) * 2006-05-02 2007-11-08 Alvarion Ltd. Method for handover in a wireless communication network
TWI530133B (zh) 2006-06-09 2016-04-11 進化無線責任有限公司 行動通訊系統中傳送資料之方法和裝置
JP4858690B2 (ja) * 2006-06-14 2012-01-18 日本電気株式会社 移動体通信システムおよびハンドオーバ時のデータ伝送方法
WO2008004829A1 (fr) * 2006-07-07 2008-01-10 Samsung Electronics Co., Ltd. Appareil et procédé destinés à la transmission d'informations de contrôle dans un système à accès sans fil très large bande (bwa)
US8064401B2 (en) * 2006-07-14 2011-11-22 Qualcomm Incorporated Expedited handoff
US8259688B2 (en) 2006-09-01 2012-09-04 Wi-Lan Inc. Pre-allocated random access identifiers
CA2662572A1 (fr) * 2006-10-03 2008-04-10 Qualcomm Incorporated Transfert intercellulaire vers une cellule d'une station de base cible dans un systeme de communication sans fil
KR100782928B1 (ko) 2006-10-24 2007-12-07 삼성전자주식회사 광대역 무선접속 통신시스템에서 압축 정보를 이용한핸드오버 장치 및 방법
KR20080041535A (ko) * 2006-11-07 2008-05-13 한국전자통신연구원 핸드오버 타깃 네트워크 선택 방법 및 그 시스템
US20100061339A1 (en) * 2006-11-14 2010-03-11 Sung-Kyung Kim Handover method with mobile relay station
US8630604B2 (en) * 2006-11-17 2014-01-14 Industrial Technology Research Institute Communication methods and devices for dual-mode communication systems
FI20070094A0 (fi) * 2007-02-02 2007-02-02 Nokia Corp Radiopäällysverkon turvallisuusalgoritmin vaihtaminen handoverin aikana
KR100998189B1 (ko) * 2007-02-12 2010-12-03 삼성전자주식회사 광대역 무선통신 시스템에서 이종망간 핸드오버를 위한장치 및 방법
KR101467802B1 (ko) * 2007-04-12 2014-12-04 엘지전자 주식회사 광대역 무선접속 시스템에서 핸드오버 수행 및 지원 방법
US8442531B2 (en) 2007-05-15 2013-05-14 Nokia Corporation Context transfers and multi-band operation for wireless networks
WO2009005327A2 (fr) * 2007-07-04 2009-01-08 Samsung Electronics Co., Ltd. Dispositif et procédé de gestion de l'identification des connexions dans un système de communication
EP2193669B1 (fr) * 2007-08-13 2015-01-21 Telefonaktiebolaget LM Ericsson (publ) Mise à jour d'informations de voisin améliorée dans un système cellulaire
US20090143089A1 (en) * 2007-11-29 2009-06-04 Samsung Electronics Co., Ltd. Apparatus and method for performing an expedited handover using a dedicated ranging channel in a wireless network
WO2009079653A2 (fr) * 2007-12-18 2009-06-25 Zte U.S.A., Inc. Transfert efficace de services de diffusion/multidiffusion générale (mbs) wimax et support économiseur d'énergie pour des zones intra et inter-mbs
JP5015856B2 (ja) 2008-02-01 2012-08-29 パナソニック株式会社 基地局、無線通信システム、およびハンドオーバ方法
KR100989936B1 (ko) * 2008-02-28 2010-10-26 한국전자통신연구원 이동 통신 시스템에서 핸드오버 관리 방법
JP5174520B2 (ja) * 2008-04-18 2013-04-03 京セラ株式会社 移動通信システム、およびチャネル割り当て方法
JP2010028675A (ja) * 2008-07-23 2010-02-04 Fujitsu Ltd 通信システム、基地局、移動端末およびデータ転送方法
KR100939722B1 (ko) 2008-08-11 2010-02-01 엘지전자 주식회사 데이터 전송 방법 및 이를 위한 사용자 기기
KR101600853B1 (ko) * 2008-08-27 2016-03-08 엘지전자 주식회사 멀티 캐리어 통신시스템에서 핸드오버 지원 방법 및 장치
US8725143B2 (en) * 2008-12-14 2014-05-13 Qualcomm Incorporated Methods and systems for handover in WiMAX networks
KR101666894B1 (ko) * 2009-01-05 2016-10-17 엘지전자 주식회사 무선통신 시스템에서의 레인징 정보 전송 방법 및 그 단말
US8943552B2 (en) 2009-04-24 2015-01-27 Blackberry Limited Methods and apparatus to discover authentication information in a wireless networking environment
US20110086651A1 (en) * 2009-08-26 2011-04-14 Samsung Electronics Co. Ltd. Techniques for interference mitigation in multi-tier communication system
KR101660740B1 (ko) * 2009-10-14 2016-10-10 엘지전자 주식회사 광대역 무선 접속 시스템에서 핸드오버 수행방법
WO2011057451A1 (fr) * 2009-11-13 2011-05-19 中兴通讯股份有限公司 Procédé et système pour qu'un sous-système de station de base récupère la capacité de prise en charge de mappage de trames d'une station mobile
US8660097B2 (en) * 2010-03-30 2014-02-25 Qualcomm Incorporated Methods and apparatus for service continuity in a communication network
US8631368B2 (en) 2010-03-30 2014-01-14 Qualcomm Incorporated Method and circuit to generate race condition test data at multiple supply voltages
US20120149362A1 (en) * 2010-06-18 2012-06-14 Interdigital Patent Holdings, Inc. Victim User Equipment Status
KR102100208B1 (ko) * 2010-06-25 2020-04-13 삼성전자주식회사 무선 통신 시스템에서 핸드오버 방법 및 그 장치
CN102884836B (zh) * 2011-05-11 2015-05-06 华为技术有限公司 一种网络配置处理方法、装置和无线网络控制器
CN104247550B (zh) * 2013-04-03 2019-03-26 华为技术有限公司 一种数据的传输方法、通信设备和通信系统
CN113747418B (zh) * 2015-08-05 2024-05-14 IPCom两合公司 Sfn节点间消息发送
CN106507410B (zh) * 2016-11-23 2019-12-20 广东新岸线计算机系统芯片有限公司 一种用于交通列车的无线通信方法和终端
WO2020154868A1 (fr) * 2019-01-28 2020-08-06 Oppo广东移动通信有限公司 Procédé et appareil de configuration de paramètres, et dispositif de réseau
US11558793B2 (en) * 2019-09-10 2023-01-17 Qualcomm Incorporated Techniques for performing conditional handover in wireless communications
US11419019B2 (en) 2019-09-11 2022-08-16 Qualcomm Incorporated Error handling in dual active link handover
US11051220B1 (en) * 2019-10-10 2021-06-29 T-Mobile Innovations Llc Performing MU-MIMO in wireless networks utilizing different bandwidth parts

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5548812A (en) * 1994-07-21 1996-08-20 Qualcomm Incorporated Method and apparatus for balancing the forward link handoff boundary to the reverse link handoff boundary in a cellular communication system
US6236365B1 (en) 1996-09-09 2001-05-22 Tracbeam, Llc Location of a mobile station using a plurality of commercial wireless infrastructures
US6148201A (en) * 1997-08-06 2000-11-14 Nortel Networks Corporation Scalable wireless network architecture based on subscriber distribution
US6134443A (en) * 1998-03-27 2000-10-17 Motorola, Inc. Method and apparatus of directing radio frequency communication in a communication system
US6181943B1 (en) 1998-03-30 2001-01-30 Lucent Technologies Inc. Method and apparatus for inter-frequency hand-off in wireless communication systems
US5956641A (en) * 1998-03-30 1999-09-21 Motorola, Inc. System and method for facilitating a handoff of at least one mobile unit in a telecommunication system
US6216004B1 (en) * 1998-06-23 2001-04-10 Qualcomm Incorporated Cellular communication system with common channel soft handoff and associated method
US6275478B1 (en) 1998-07-10 2001-08-14 Qualcomm Incorporated Methods and apparatuses for fast power control of signals transmitted on a multiple access channel
US6590879B1 (en) * 1998-08-28 2003-07-08 Nortel Networks Limited Method, mobile station, basestation and mobile communications system for performing handoff independently for groups of physical direct sequence-code division multiple access channels
US6321090B1 (en) * 1998-11-06 2001-11-20 Samir S. Soliman Mobile communication system with position detection to facilitate hard handoff
US6567666B2 (en) * 1998-12-02 2003-05-20 Infineon Technologies North America Corp. Forward link inter-generation soft handoff between 2G and 3G CDMA systems
US6542744B1 (en) 2000-06-20 2003-04-01 Motorola, Inc. Handoff in a cellular network
US6990088B2 (en) * 2000-08-18 2006-01-24 Telefonaktiebolaget L M Ericsson (Publ) Handoff in radio telecommunications networks
US6963550B2 (en) 2000-10-24 2005-11-08 Lg Electronics Inc. Handoff method in CDMA communication system
SE523070C2 (sv) 2001-05-21 2004-03-23 Ericsson Telefon Ab L M En metod och apparat för skattning av länkkvalitet i ett mobilt kommunikationsnätverk
CN1541489B (zh) * 2001-08-14 2012-05-30 高通股份有限公司 用于无线网络连通性的方法和设备
US20030193952A1 (en) * 2002-02-04 2003-10-16 O'neill Alan Mobile node handoff methods and apparatus
US7908378B2 (en) 2002-04-26 2011-03-15 Nokia, Inc. Provisioning seamless applications in mobile terminals through registering and transferring of application context
AU2002320857A1 (en) * 2002-06-13 2003-12-31 Docomo Communications Laboratories Europe Gmbh Proactive deployment of decision mechanisms for optimal handover
US6766171B2 (en) * 2002-06-26 2004-07-20 Motorola, Inc. Method and apparatus for implementing bi-directional soft handovers between wireless networks without carrier control
US20040203791A1 (en) * 2002-06-26 2004-10-14 Pan Shaowei Method and apparatus for implementing bi-directional soft handovers between wireless networks via mobile station control
US20040082330A1 (en) * 2002-10-29 2004-04-29 Marin James Scott Method for handoff and redundancy using mobile IP
KR100594110B1 (ko) * 2003-03-08 2006-07-03 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 트래픽 상태에서의 핸드오프 시스템 및 방법
US20050070285A1 (en) * 2003-09-29 2005-03-31 Telefonaktiebolaget Lm Ericsson (Publ) Handover for use with adaptive antennas
US7197307B2 (en) * 2004-02-27 2007-03-27 Nokia Corporation Hard handover method and controller
US7233583B2 (en) * 2004-06-28 2007-06-19 Nokia Corporation Method and apparatus providing context transfer for inter-BS and inter-PCF handoffs in a wireless communication system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101397095B1 (ko) 2007-06-04 2014-05-27 고려대학교 산학협력단 무선 통신 시스템에서 핸드오버 장치 및 방법
WO2009020347A1 (fr) * 2007-08-06 2009-02-12 Samsung Electronics Co., Ltd. Appareil et procédé pour émettre et recevoir l'information d'identifiant de connexion dans un système de communication
US7961678B2 (en) 2007-08-06 2011-06-14 Samsung Electronics Co., Ltd. Apparatus and method for transmitting and receiving connection identifier information in a communication system
KR101335149B1 (ko) * 2007-08-06 2013-12-02 삼성전자주식회사 통신 시스템에서 연결 식별자 정보 송수신 장치 및 방법

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US20100105393A1 (en) 2010-04-29
WO2006020636A3 (fr) 2006-04-27

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